70Z04019QP3049800_A00001_USCG_STA_GOLDEN_GATE_(47245).pdf

70Z04019QP3049800 A00001 STA GOLDEN GATE (47245)

Question 1: MISC D-ITEMS NOT LISTED.

Setting up this bid we noticed that there are items that have been continuously on the past bids that are not on this one. The D-Items listed below are ones for inspections.

Various Piping, Inspect

Mast, Inspect

Buoyancy Chamber(S), Clean And Inspect

Steering System, Inspect

Here is the table that is usually listed for the Various Piping, Inspect.

We have had these items put in the last couple of contracts but when the new spec was inserted the table was always left blank, below is from the past contracts which listed actually what to inspect.

SYSTEM

SUB-SYSTEM

COMPONENT

LOCATION

Raw water Engine room R/W circulation Port Strainer discharge to r/w pump inlet

Forward of port engine

Raw water Engine room R/W circulation

Stbd Strainer discharge to r/w pump inlet

Forward of stbd engine

Raw water Engine room R/W circulation

Port Raw water manifold

“R/W tree”

Engine Room o/b of port engine

Raw water Engine room R/W circulation

Stbd Raw water manifold

“R/W tree”

Engine Room o/b of stbd engine

Raw Water Engine room R/W supply

Port deicing fittings & adapters

Engine Room @ BHD

Raw Water Engine room R/W supply

Stbd deicing fittings & adapters

Engine Room @ BHD

Raw Water HVAC HVAC supply piping between strainer and pumps

Auxiliary Machinery

Space

Ventilation Forepeak ventilation Forepeak vent box Fwd main deck

Ventilation F/O tank ventilation F/O tank vent box Port recess deck, fwd

Answer: See REV-1

WORK ITEM 1: General Welding, Provide

ITEM DESCRIPTION LOCATION APPROXIMATE

SQFT.

Fabricate aft deck soft patches Engine Room/Aft Deck Two Pieces

Question: Does fabricating both the P&S soft patches include all new insulation, non-skid, and fasteners?

70Z04019QP3049800 A00001 STA GOLDEN GATE (47245), pg. 3

Answer 1: Both Port and Starboard include new insulation and hardware.

Question 2: WORK ITEM 3: Hull Plating (U/W Body), Inspect

3.2.7 Coating system inspections. The Contractor shall accomplish the below inspections, in conjunction with the underwater hull inspection conducted by the Underwater Hull Inspection Board

(UWHIB). Document the condition found as “Partial - Condition A”, “Partial - Condition B”, “Partial

Condition C”, or “100%”, as applicable (see 4.1 (Definitions)). Submit a CFR.

NOTE

The following inspections are for determining the existing condition of the coating system for the underwater body surfaces, which are deemed “Critical-coated” surfaces; they must be carried out by a SSPC-QP-1 certified contractor/sub-Contractor or a NACE Inspector– see SFLC Std Spec 0000, paragraph 3.2.4.2

(In-process QCmeasures for “critical-coated surfaces”).

3.2.7.1 Visual. Perform a visual inspection of the existing U/W body coating system.

Question: Under the note it is requesting for a QP-1 or Nace Inspector, is this necessary since the bottom of the boat is going to be 100% sand blasted and painted and checked by the QP-1 or

Nace Inspector at that time?

Answer 2: Nace inspector is not required for the UW hull inspection, however, a NACE 3

Coatings Inspector will be required IAW with requirements as stated in Std Spec 0000

(Surface Prep, coating application, coating thickness readings, etc…)

Question 3: WORK ITEM 5: U/W Body, Preserve (100%)

Question: Is utilizing the Sherwin Williams NACE-3 inspector still acceptable as in the past?

Answer 3: No. Contractors will need to follow Std Spec 0000. Nace 3 coating inspector’s independent from any paint supplier will be required as per Std Spec 0000

Question 4: WORK ITEM 6: Rub Rail, Remove, Inspect and Install

3.4 Reinstallation. After the completion of all inspections and any authorized repairs, the Contractor shall re-install each rub rail section, using new nylon insert locking nuts.

3.6 Preparation/Preservation. For vessel 47206 and subsequent, area covered by fendering system and aluminum faying surfaces (surfaces of similar or dissimilar materials that are fit closely together and fastened) shall be painted in accordance with CG Drawing 47B-MLB 631-020.

70Z04019QP3049800 A00001 STA GOLDEN GATE (47245), pg. 4

Question: There is no scope of work about installing the rub rails as shown on BP#47B MLB 611-020

Rev H sheet 3 of 3 items 8 & 9. Wanted to check to see if we are still sandblasting the hull surfaces, inspecting them, applying two coats of the epoxy paint, applying a full coat of 5200 sealant on the hull surface then utilizing the 4200 sealant to seal up the seams and edges?

Answer 4: Yes, the spec is somewhat vague on the work required. Based on paragraph

3.3.1(Clean & Inspect), the rub rail, fender mounting surfaces, etc shall be inspected and a CIR submitted with results of inspection and any recommended repairs. The coating system is not to be applied/renewed until a CIR is submitted and a CR approved. A full coating of 5200 and 4200 on the seams will be applied upon re-installing the rub rails.

Question 5: WORK ITEM 9: Tanks (Mp Fuel Service), Clean And Inspect

3.1.4.2 Stow all fluids in suitable stowage facility, immediately after removal, and re-stow all tank contents, upon completion of work. Contractor shall ensure fuel quality is maintained throughout all stages of the process

4.1 Tank content removal. The Ship’s force will pump down the tanks to the maximum extent possible with the installed pumping system.

4.2 Tank content restoration. The Ship’s force will procure new fluids and refill all tanks at the appropriate time.

Question: Is this correct, it sounds like a cutter spec, and if it is then is Work Item 19 being eliminated?

Answer 5: See Rev-1

3.1.4.1 The Contractor shall remove up to a total of 373 gallons of diesel fuel. Document a complete chain of custody record of the removed tank contents from the vessel to the point of final destination or delivery. Submit document to the COR upon completion of work

Question 6: WORK ITEM 13: Main Diesel Engine Exhaust System, Clean And

Inspect

3.2.1 Exhaust splitter valve. The Contractor shall remove the exhaust splitter isolation valve from the crossover pipe between the two mufflers and transport to a suitable machine shop for overhaul.

3.3.1 The Contractor shall overhaul the exhaust splitter valve with Contractor- furnished overhaul kit in accordance with manufacturer’s instructions. Renew all manufacture approved gaskets and O-rings.

Question: After researching the valve company information on the overhaul, and available kits, the valve company states that those valves are not overhaulable and need renewed because they will never pass the pressure test or seal properly again.

70Z04019QP3049800 A00001 STA GOLDEN GATE (47245), pg. 5

Do you want the contractors to supply new valves as part of the bid?

Answer 6: Yes

Question 7: WORK ITEM 14: Standard Hoses, Renew

053-B

STEERING SYSTEM

RAM BLOCK TO STBD

RAM FITTING 104 MM

LONG

OEM

HM226

2/104

N/A

053-C

RAM BLOCK TO CEN

AFT RAM FITTING 435

MM LONG

1/435

053-D

RAM BLOCK TO PORT

RAM FITTING 335 MM

LONG

1/335

Question: Are these special OEM hoses still contractor supplied or GFE?

Answer 7: : These Steering hoses will be contractor supplied

Question 8: WORK ITEM 17: Sea Strainers - Sea Strainers - Duplex (All Sizes), Overhaul

3.3 Reinstall. After completion and acceptance by the Coast Guard Inspector; the Contractor shall reinstall all overhauled, cleaned and new strainers to their original locations, as shown on Coast Guard Drawing

47B-MLB 505-020 and TP 3359. Renew all gaskets with material conforming to ASTM D1330 of the same size and configuration as those gaskets removed. Renew all hardware with nickel-copper alloy fasteners.

Question: Are we to renew fasteners with in-kind materials, not nickel-copper alloy?

Answer 8: YES

Question 9: WORK ITEM 17: Sea Strainers - Sea Strainers - Duplex (All Sizes), Overhaul

3.6 Contractor’s option for strainer renewal. The Contractor may opt to renew strainers designated for overhaul if preferable for the Contractor, and is at no additional cost to the Government. New strainers shall be equivalent (including identical material) to the strainer being renewed. Visually inspect the piping and mounting arrangements, and submit a CFR detailing any required modifications to accommodate the new strainer(s).

Question: In the past, we have always had these strainers as GFE if they were not overhaulable, because, why would the contractor spend $6,000.00 on the new strainers when if the strainers were

70Z04019QP3049800 A00001 STA GOLDEN GATE (47245), pg. 6 overhaulable, only costing about $1,000.00. Does not make fair bidding for the contractor to gamble they are in good condition, then if not, must purchase new ones.

This should be a change request if they are not overhaulable, correct?

Answer 9: Yes, and GFE provided.

Question 10: WORK ITEM 18: Sea Strainers - Simplex (All Sizes), Clean and Inspect

3.2.3 Reassemble. After completion and acceptance by the Coast Guard Inspector, reassemble all strainers.

Renew all hardware with nickel-copper alloy (Monel) fasteners.

Question: Are we to renew fasteners with in-kind materials, not nickel-copper alloy?

Answer 10: Yes

Question 11: WORK ITEM 28: Bilge Preservation, Auxiliary Space

Below is what is in the spec:

TABLE 1 - PAINT SCHEDULE 47 MLB

INTERIOR

SURFACES TO

BE

PRESERVED

SURFACE PREPARATION COATING SYSTEM DFT

(MILS)

COLOR FED

STD 595

COLOR #

Auxiliary Space

Bilge (FR8-10) outboard to the longitudinal girders.

NEAR WHITE BLAST PER

SSPC-SP10 WITH CLEAN, FINE

ALUMINUM OXIDE, GARNET

OR EQUIVALENT INERT

MATERIAL CONFORMING TO

A-A-59316, TYPE I & IV WITH A

1.5-2.0 MIL ANCHOR PROFILE

1) High Build Epoxy

2) High Build Epoxy

5.0-6.0

Light Gray #26373

Light Gray #26373

The next table shows what has been in the specs, for surface prep, in all the other contracts:

70Z04019QP3049800 A00001 STA GOLDEN GATE (47245), pg. 7

TABLE 1 - PAINT SCHEDULE 47 MLB

INTERIOR

SURFACES

TO BE

PRESERVED

SURFACE PREPARATION

COATING

SYSTEM

DFT

(MILS

COLOR FED

STD 595

COLOR #

Auxiliary Space Bilge (FR8-10) outboard to the longitudinal girders.

POWER TOOL CLEANING

PER SSPC-SP11 SO AS

TO ACHIEVE A 1.5-2.0

MIL ANCHOR PROFILE

1) High Build Epoxy

2) High Build Epoxy

Light Gray #26373

Light Gray

#26373

3.4 In-process quality control measures. The Contractor shall abide by all the safety, preservation, and quality control requirements specified in SFLC Std Spec 0000, paragraph

3.2.4.2 (In-process QC measures for “critical-coated surfaces”).

Question: Should this be changed to the SSPC-SP11 surface prep and being that this is not a sand blasted surface and has not been a “critical-coated surfaces” in the past as well; this should not require a Nace inspector.

Are we to use the SSPC-11 surface prep and not use a Nace inspector?

Answer 11: This will be mechanical clean, SSPC-SP11 surface prep is to be used and a NACE inspector is not required for coating the Aux Space Bilge. See Rev-1

END OF AMENDMENT A00001